초록 ▼

This invention is a heated corrugated (21) conduit (7) for use in a respiratory humidification system (5). A heater wire (20) within the conduit reduces the occurrence of condensation or "rain out". The heater wire is spirally wound in a helix or double helix with both ends of the wire available for

This invention is a heated corrugated (21) conduit (7) for use in a respiratory humidification system (5). A heater wire (20) within the conduit reduces the occurrence of condensation or "rain out". The heater wire is spirally wound in a helix or double helix with both ends of the wire available for termination at one end of the conduit.

대표청구항 ▼

[ What is claimed is:] [21.] A method of producing a heated gases transportation pathway for use in a ventilation system comprising the steps of:i) forming a conduit through which gases may be channelled,ii) winding a predetermined length of thermoplastically insulated resistance wire into a helix o

[ What is claimed is:] [21.] A method of producing a heated gases transportation pathway for use in a ventilation system comprising the steps of:i) forming a conduit through which gases may be channelled,ii) winding a predetermined length of thermoplastically insulated resistance wire into a helix of a diameter less than the inside diameter of said conduit,iii) heating the helically wound resistance wire to a predetermined temperature at which said insulation is softened,iv) cooling said heated resistance wire so that the cooled resistance wire will tend to elastically retain its helically wound shape, andv) inserting the thus formed helically wound resistance wire into said conduit.